Walking out in the middle of a funeral would be, of course, bad form. So attempting to walk out on one's own was beyond the pale.
Zombies are a fairly new addition to the cannon of monsterdom. Really, the modern zombie goes back just to the 'Night of the Living Dead.' There's a ton of material out there, but it seems like there's not a lot of diversity out there.
I like zombies; I like them fine. But I don't have a long list of zombie movies or books that are among my favorite things in the world.